The meso-azacyclic aromatic acid amides and esters of the present invention are useful in the treatment of the central nervous system and gastrointestinal motility disorders such as gastroesophageal reflux, non-ulcer dyspepsia, delayed gastric emptying, ileus, irritable bowel syndrome, and the like. Additionally, the compounds of the present invention find utility as antagonists of serotonin 5-HT.sub.3 receptors. As such they are useful for the treatment of humans and animals wherein antagonism of 5-HT.sub.3 receptors is beneficial. Therapy is indicated for, but not limited to, the treatment of anxiety, psychoses, depression (especially depression accompanied by anxiety), cognitive disorders, substance abuse dependence and/or withdrawal, irritable bowel syndrome, emesis caused by chemotherapeutic agents, and visceral pain. Additionally, the compounds of the present invention may find utility as enhancers of nasal absorption of bioactive compounds.
本发明中的中环氮杂芳酸酰胺和酯在治疗中枢神经系统和胃肠动力障碍(如胃食管反流、非溃疡性消化不良、胃排空延迟、肠梗阻、肠易激综合征等)方面有用。此外,本发明中的化合物可用作
血清素5-HT.sub.3受体拮抗剂。因此,它们在拮抗5-HT.sub.3受体有益的人类和动物的治疗中有用。治疗适用于但不限于焦虑、精神病、抑郁症(尤其是伴有焦虑的抑郁症)、认知障碍、物质滥用依赖和/或戒断、肠易激综合征、化疗药物引起的呕吐和内脏疼痛。此外,本发明中的化合物可能作为
生物活性化合物鼻吸收的增强剂有用。